Horse-power



(No Model.) 2 Sheets-Sheet 1.,

J. B. SHEAR.

HORSE POWER No.- 402,198." Patented Apr. 30. 1889.

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No Model.) 2 sheets-sheet 2..

" J. B. SHEAR.

- HORSE P WER, No. 402,198. Patented Apr. 30, 1889;.

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JOHN B. SHEA-R, or AUBURN, NEW YORK.

HORSE-POWER.

SPECIFICATION forming part of Letters Patent No. 402,198, dated April30, 1889.

Application filed December 28, 1888. Serial No.2 94=,857. (No model.) I

T 0 aZZ whom it may concern:

Be it known that 1, JOHN B. SHEAR, a-citizen of the United States,residing at Auburn, in the countyofOayuga and State of New York, haveinvented new and useful Improvements in Horse-Powers for Operating Hay-Eorks, of which the followingis a specifica- My invention relates toimprovements in horse-powers for operating hay-forks; and it consists incertain novel features hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of myimproved horsepower, showing the hay-fork connected thereto in dottedlines. Fig. 2 is a side elevation of the improved horse-power. Fig. 3 isa central longitudinal vertical section of the same, and Fig. 4 is aplan view with a partbroken away.

Referring to the'drawings by letter, A designates abarn, B the hay-fork,of the usual or any preferred construction, and O designates the ropeconnecting the said hay-fork with my improved horsepower.

D designatesthe frame of my horse-power having the longitudinal bars Eand the cross bars or beams F. Near one end of the frame I mount thevertical driving-shaft G, upon the upper end of which I secure the sweepor lever H, and near the lower end of said'shaft I secure a largegear-wheel, I,. as shown. This gearwheel I meshes with a pinion, J, onthe inner end of a horizontal shaft, K, mounted in the frame andextended to the opposite end of the same, as shown. A drum or Windlass,L, is loosely mounted on this shaft K, and the rope C is secured to andwinds on the said drum. The drum is provided at its inner end with ahalf-clutch, M, which is engaged by a second half-clutch, N, mounted onthe shaft K and sliding longitudinally upon the same. The saidhalf-clutch N is provided with a longitudinal slot, 0, whichis engagedbyaradial pin, P, on the shaft, so that the said halfclutch will movewith the shaft. The clutch is further provided at its inner end with anannular groove, Q, which is engaged by the lower forked end of a lever,B, fulcrumed near 'its upper end upon a lug, S, secured on the upper.edge of one of the cross-beams of the frame of thehorse-power. The upperend of this lever B projects inward and upward and plays in a recess ina cross-beam, T, of the frame, and is adapted to be pressed outward inthe operation of the device to release the hay-fork. The lower end ofthis lever is pressed normally outward, so as to hold the twohalf-clutches in engagement by a spring, U, secured upon the cross-beamof the frame and bearing against the lever.

V designates a trip lever, which is fulcrumed upon the cross bar or beamT of the frame and has its inner end forked, as shown.

The lower arm, WV, of this inner forked end is provided with ahorizontalshoulder, X, which engages the inner upper end of the lever It, and isadapted to operate the same. The sa d trip-lever is held in its normalposition in engagement with the lever B by a spring, Y, secured to thecross-bar T and acting on the outer end of the trip-lever. A cord, Z, 1ssecured to the free endof the trip-lever and extends therefrom to apoint within the barn within convenient reach of the operator. Thiscordis used when it is desired to lower the hay-fork by hand.

a indicates a 'small band-pulley secured on the vertical driving shaft,just below the sweep H, and geared to a larger pulley, b,b y means of across-belt, c. The said pulley b 1s mounted on a cross-bar of the frameadjacent to the cross-bar T, and is provided on its upper side with avertical pin, d, which 1s adapted to contact with the upper arm of thefork of the trip-lever and thereby disengage the trip-lever from thelever B. On its under side the pulley b is provided with a cam, e, which'is adapted to bear against the lnner upper end of the lever R andthereby operate the same.

In practice the horse-powerisset up at the proper place and connectedwith the hayfork, and the sweep then rotated in the direction indicatedby the arrow. The gear-wheel I is thus caused to impart motion to thepinion J and through it to the shaft K, and the half-clutch N beingcarried around by the said shaft K will rotate the drum so as to windthe rope O thereon and thereby raise the hay-fork. The several parts areso arranged that just as the hay-fork has reached the desired height thepin cland camewill begin to act on the trip-lever and the lever B. Thetrip-lever will thus be disengaged from the lever B and the upper end ofthe said lever be pressed outward, thereby drawing the lower end of saidlever inward and disengaging the clutches. The weight of the fork andthe hay carried thereby will thus be thrown directly on the drum and therope will be unwound therefrom and the fork lowered. As soon as the camc has passed the upper end of the vibrating lever B, the spring, actingon the lower end of the same, will throw the said lower end outward andcause the clutches to again engage, so that the machine is in positionto raise another load of hay.

It will thus be seen that I have provided a very simpleand efficienthorse-power, by which the hay-fork will be raised and lowered withoutstopping the horse or requiring vigilant attention on the part of theoperator.

\Vhen it is desired to operate the device by hand to lower the fork, thepulley b is dispensed with, and the cord connected to the trip-leveroperated so that the said lever will bear against the upper end of thevibrating lever and force the same outward, thereby disengaging theclutches, as before stated. It will sometimes be found preferable tothus operate the trip-lever by hand, as in that case the operator cancontrol the height to which the fork is to be raised; but when the forkwill be raised to substantially the same height for a great number oftimes, the gearing described will be found more desirable.

I11 order to regulate the height to which the fork will be raised, Iprovide the pulley b with a number of openings, f, in its upper side, inany of which the pin (Z is engaged.

My device is composed of few parts, is very compactlyarranged, and isefficient and durable.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1S

1. The combination, with the frame, of the horizontal shaft therein,gearing to operate said shaft, the drum mounted loosely on the shaft andprovided with a half-clutch at one end, the half-clutch on the shaftengaging the half-clutch on the drum, the vibrating lever mounted 011the frame and engaging said clutch, and a trip-lever mounted above andengaging said vibrating lever, as set forth.

3. The combination of the frame, the horizontal shaft therein, gearingfor operating said shaft, the drum mounted loosely on the shaft andprovided with the half-clutch at one end, the half-clutch sliding on theshaft and engaging the half-clutch of the drum, the vibrating levermounted on the frame and having its lower end engaging the clutch, thetriplever mounted on the frame and engaging the upper end of thevibrating lever, and the pulley having the pin 011 the upper sideengaging the trip-lever anda cam on its lower side engaging thevibrating lever, as specified.

I. In a horse-power, the shaft K, having the drum mounted looselythereon, the clutch connecting the drum to the shaft, the drivingshafthaving the usual sweep, H, the pulley a, secured to the driving-shaftbelow the sweep, a pulley, I), connected to pulley a by a belt, andtripping devices actuated by the pulley b to cause the engagement of theclutch on the drum-shaft, as set forth.

5. In a horse-power, the drum-shaft K, the d rum loosely mountedthereon, the clutch connecting the drum to the shaft, the drivingshafthaving the sweep, and tripping devices actuated by the movement of thedriving-shaft to cause the disengagement and engagement of the clutch onthe drum-shaft, as set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in. presence of two witnesses.

JOHN ll. SHEAR.

\Vitnesses:

OSCAR TRYoN, DIADEMIA BoDINE.

